Uh-oh! What A Mess! is the 19th episode of Season 1 of Harry and Friends which aired September 29, 1995. It focuses on the first day of fall and Harry needs to clean his room so he can go out and play with his friends and Spot but he can't clean his room all by himself. He needs his friend Billy Joel to help him clean up his room so Billy teaches him the clean up song Look What I Can Do.
- Song: Look What I Can Do
It's autumn but Harry accidentally makes a mess a of his room and, with a help of his music star friend, must clean up his room if he wants to find his baseball bat so he can play ball with his friends.
- Wendy Wong does not appear in this episode because she is away with her family on Long Beach, California to visit her cousins when she is mentioned by her boyfriend Stinky Jones.
- Megan Miyahira, who voices Wendy, has missed this episode due to filming two Kidsongs videos Let's Put On A Show and Baby Animal Songs.